Glass container handling apparatus

ABSTRACT

A 90* pusher for handling glass containers, convertible from righthand to lefthand and vice versa, is self-contained and includes a housing supported by a bracket and rotatable about a center post. Rotation of the housing is effected by means of a dual surface cam track and linkage actuated thereby. The pusher has an automatic reset feature if a jam occurs.

United States Patent 1 1 1111 3,779,362 Horn Dec. 18, 1973 [54] GLASSCONTAINER HANDLING 1,1 18,152 11/1914 Rowe l98/24 APPARATUS 3.559.5372/1971 Faure H 198/24 [75] Inventor: Larry L. Horn, Wmchester, lnd.primaw ExaminerwEvon C. Blunk [73] Assignee: Maul Bros. llnc.,Millville, NJ. Assistant Ex i er-Jame W, Mille [22] Filed Oct 13 1971Attorney-Arthur H. Seidel et al.

21 A l. N 188,929 1 pp 0 57 ABSTRACT [52] us Cl. I I 198/24 A 90 pusherfor handling glass containers, convertible [5i Int. Cl. 47/00 fromrighthand to lefthand and vice versa is Self [58] Field of f l 193/24contained and includes a housing supported by a U bracket and rotatableabout a center post. Rotation of he housin is effected b means of a dualsurface cam [56] References Cited t y track and lmkage actuated thereby.The pusher has an UNITED STATES PATENTS automatic reset feature if a jamoccurs. 3,595,365 7/l97l Faure 198/24 3,400,802 9/[968 Rowe 198/24 10Claims, 6 Drawing Figures PAIENTEHozc 18 ma 3779362 SHEET 10F 4 INVENTOR LARRY L. HORN L Q B) ATTORNEYS.

EMENTH] DEF. 18 I973 sum 2 0r 4 INVENTOR LARRY L. HORN FIG. 2

ATTORNEYS.

mmm] net 1a 1915 SHEET l [1F 4 INVEN 7'01? LARRY L. HORN ATTORNEYS.

GLASS CONTAINER HANDLING APPARATUS DISCLOSURE The glass containerhandling apparatus of the present invention is often referred to as a 90pusher for transferring newly formed glass containers from a dead plateonto a conveyor. While on the dead plate, the glass containers aresubjected to a cooling effect by way of air passing upwardly through theperforated top surface of the dead plate. Typical patents disclosing a90 pusher are U. S. Pat. Nos. 3,249,200 and 3,510,288.

The apparatus of the present invention is particularly adapted in amanner to overcome disadvantages of the prior art. The apparatus of thepresent invention is a self-contained unit which may be installed orremoved as a unit. Maintenance on the apparatus of the present inventionis minimized by using a device structurally interrelated in a mannerwhich avoids the use of springs for maintaining a cam follower incontact with a cam face, eliminates the use of chain and sprocket drivemechanisms, and other features of the prior art which requiresubstantial maintenance and thereby create substantial down-time for theapparatus.-

The apparatus of the present invention includes a pusher plate whichphysically engages glass containers and transfers them from the deadplate to the conveyor. The pusher plate is supported for extension andretraction by means of a housing. The housing is supported by a flangeon a mounting bracket for oscillation about the longitudinal axis -of avertical center post. The pusher plate and its motor are supported by afirst section of the housing. Means for oscillating the housing as aunit is connected to a second section of the housing.

The housing sections are coupled together for rotation as a unit. In theevent of a jam, the housing sections are uncoupled so that the firsthousing section and the pusher plate will cease rotating. The firsthousing section and the pusher plate will move during the return strokeback to their initial position, and engage a limit stop, due to thefriction between the housing sections.

The oscillation of the housing is effected by means of an actuatorlinkage extending between the housing and a cam follower disposed in adouble face cam track. The use of a double face cam track minimizes wearon the cam follower, minimizes vibration, and eliminates the requirementof a drag brake on the cam shaft. In this manner, a more positive driveis provided for the oscillation of the housing with fewer componentsthan proposed heretofore and while using components which are less proneto require maintenance.

The apparatus of the present invention is capable of being convertedfrom lefthand to righthand operation and vice versa. Conversion can beattained in twenty minutes without requiring any extra parts. Allcomponents of the apparatus of the present invention except for thepusher plate and its actuating linkage are below the plane of the deadplate and conveyor so as to minimize the heat to which the componentsare subjected.

The apparatus of the present invention is adapted to be installed on awide variety of LS. machines including a standard type E machine, Maultype E 5-inch GJ, Maul 6-inch center GJ, Maul 4-inch center TG, Maul 4/4-inch TG, etc.

The apparatus of the present invention is more compact than thoseprovided heretofore whereby the furthermost rotating surface is only 3%inchesfrom the.

axis of rotation. The axis of rotation is substantially equidistant fromthe centerline of the dead plate and conveyor. In the event thatmaintenance is required on the housing, it is easily removed withoutaffecting removal of the support-bracket;

It is an object of the present invention to provide novel glasscontainer handling apparatus which is compact, easy to install, and easyto maintain.

It is another object of the present invention to provide glass containerhandling apparatus for transferring glassware from a dead plate to aconveyor in a manner which minimizes the need for maintenance.

It is another object of the present invention to provide a 90 pusherwherein oscillation is effected by means of a cam follower disposed in adouble face cam track.

It is another object of the present invention to provide a 90 pusherhaving an automatic reset feature which resets the mechanism if a jamoccurs.

It is another object of the present invention to provide a 90 pusherwhich may be convertible from lefthand to righthand and vice versa in ashort period of time without using any extra parts.

Other objects will appear hereinafter.

For the purpose of illustrating the invention, there is shown in thedrawings a form which is presently preferred; it being understood,however, that this invention is not limited to the precise arrangementsand instrumentalities shown.

FIG. 1 is a partial plan view of apparatus in accordance with thepresent invention.

FIG. 2 is a sectional view taken along the line 22 in FIG. 1.

FIG. 3 is a side elevation view taken along the line 33 in FIG. 2.

FIG. 4 is a sectional view taken along the line 44 in FIG. 2.

FIG. 5 is a sectional view taken along the line 55 in FIG. 2.

FIG. 6 is a top plan view of the pusher plate assembly adapted to beutilized when more than one glassware container is being transferredfrom the dead plate to the conveyor.

Referring to the drawing in detail, wherein like numerals indicate likeelements, there is shown a pair of adjacent pushers in accordance withthe present invention designated generally as 10 and 10. The 90 pushersshown in the drawing are set up for righthand delivery. Hence, to theright of the pusher 10, there is provided a dead plate 12. To the rightof the pusher 10', there is provided a dead plate 12'. The number ofpushers and dead plates will vary on conventional machinery from four toeight in number. A conveyor 14 extends alongside each of the pushers anddead plates to convey the newly formed glassware to annealing equipment.

Each of the 90 pushers and its relationship with its associated deadplate and the conveyor 14 are identical. Hence, only pusher 10 will bedescribed in detail.

The pusher 10 is supported from a conveyor beam 20, below the conveyor14, by means of a bracket 18. In operative embodiments of thisinvention, four bolts 20 are utilized to removably attach the bracket 18to the conveyor beam and thereby install or permit complete removal'ofthe pusher 1.0. Thus, the pusher 10 may be rapidly installed or removed.

The bracket 18 includes a depending portion 22 having an upper shortflange 24 and a lower long flange 26. Each of the flanges 24 and 26projects away from the conveyor belt 14. A vertically disposed centerpost 28 is fixedly secured in a bore in flange 26 at a location so thatits longitudinal axis is substantially equidistant from the adjacentedge of the dead plate 12 and conveyor 14. This feature contributes tothe ability of the pusher to be orientated for lefthand operation orrighthand operation as desired. Post 28 is provided with suitable bores,one of which is aligned with a bore in the flange 26 to facilitatelubricating bearings and other components surrounding the post 28.

A top plate 30 is removably bolted to the flange 24. The lower surfaceof plate 30 is recessed so as to receive the stationary center post 28.A bolt 32 extends through a bore in the plate 30 and is threadedlysecured to the upper end of the post 28.

A shim and a flat spring 34 are provided below and in engagement withthe lower surface of plate 30. The shim and spring surround the post 28and overlie a housing comprised of sections 38 and 39. The spring 34biases the housing sections toward boss 36 which is a part of flange 26and surrounds the post 28.

A combination wear plate and valve plate 35 is provided on top of theboss 36 and below the housing section 39. Spaced bearings 40 and 42 areprovided between the post 28 and the ID. of the housing 39. A spacersleeve 44 maintains the bearings 42 and 40 spaced from one another.Thus, the housing is mounted for rotation about the longitudinal axis ofpost 28.

The only interconnection between the housing sections 38 and 39 is thehardened steel ball 46 which enters a bore 47 in the section 39. Aspring 48 biases the ball into a position wherein it constitutes a linkcausing the housing sections 38 and 39 to rotate as a unit. The springpressure may be adjusted by means of the set screw 50. In the event ofan obstruction which interferes with the free rotation of section 38,ball 46 will be cammed upwardly against the spring 48 so that thehousing section 39 may rotate independently of section 38. This will bedescribed in greater detail hereinafter.

The housing section 38 includes a cylinder 52 having a replaceable liner53. Within the liner 53, there is provided a piston 54 connected to apiston rod 58. The piston rod 58 extends upwardly through a cylinderhead 56.

The upper end of piston rod 58, above the elevation of head 56, ispivotably connected to one end of a link 60. The other end of link 60 ispivotably connected to the short leg ofa bell crank link 62. One end ofthe long leg oflink 62 is pivotably connected by pin 64 to extension 65on head 56. Another link 66, longer than link 62, has one end pivotablyconnected to extension 65 by means of pin 68. The other end of each ofthe links 62 and 66 is pivotably connected to a connector 70 at spacedpoints thereon by means of pins 72 and 74, respectively.

The connector 70 is generally T-shaped with the long leg thereofpivotably connected to the links 62 and 66. The transverse leg of theconnector 70 is adjustably connected to a pusher plate 76. As shown moreclearly in FIG. 1, the pusher plate 76 is generally L-shaped with oneleg being adjustably connected to the transverse leg of the connector 70by means of bracket 78. Bracket 78 is adjustably connected to plate 76by means of a bolt or screw 80 which extends through slot 83 on pusherplate 76 and the bracket 78 shown more clearly in FIGS. 1 and 3. Bracket78 is removably connected to the transverse arm on the T-shapedconnector 70.

A driven cam shaft 84 extends below each of the pushers parallel to theconveyor 14. The cam shaft is conveniently attached to the bracket oneach of the 90 pushers by means of a pillow block 86 with a suitablebearing therebetween. The pillow block 86, see FIG. 2, is removablyconnected to the bottom surface of the flange 26.

A cam 88 is attached to the cam shaft 84 at spaced points therealongadjacent each of the 90 pushers. See FIG. 4. Cam 88 is provided with adouble face cam track 90. Cam 88 is preferably made from mating halvesbolted together. A cam follower 91 is disposed within the track 90 androtatably attached to an arm 92 intermediate the ends of the arm 92.

One end of arm 92 is pivotably connected by pin 94 to a bracket 93bolted to the depending portion 22 of bracket 18 at an elevationapproximately the same as the elevation of housing section 39. The otherend of arm 92 is pivotably connected by pin 95 to one end of a rod 96.The length of rod 96 is adjustable since it includes two membersthreaded together. The other end of rod 96 is pivotably connected by pin98 to a boss 97 on the housing section 39. As cam 88 rotates, camfollower 91, arm 92, rod 96 and boss 97 cause the housing section 39 tooscillate through an arc of 90. In an operative embodiment of theinvention, the cam track 90 has a throw of approximately 1% inchesspread over an arc of 210 with the remaining circumferential arc of 150being a dwell period when the pusher arm 76 is over the dead plate 12.

A means is provided to cause the motor to extend and retract the pusherplate 76 in a predetermined manner at the ends of the 90 oscillation ofthe housing. Referring to FIGS. 1 and 5, a conduit 99 suppliespressurized air from a compressed air supply. The pressurized air iscommunicated upwardly through a passage in the flange 26, through bore100 in the wear plate 35, through aligned passage 102 in the housingsection 39 and through passage 104 in the cylinder 52 to the bottomportion of the chamber to cause the piston 54 to move upwardly. Aspiston 54 moves upwardly, the pusher plate 76 moves from the solid-lineposition shown in FIG. 3 to the phantom position shown in FIG. 3.

When pressurized air is being introduced in the bottom of the cylinderchamber as described in the next preceding paragraph, at the same timethe chamber above the piston 54 is vented to atmosphere by way ofpassages in the housing section 38, passage 106 in housing section 39,bore 108 in the wear plate 35, and conduit 110. As shown in FIG. 5, thebores 100 and 108 are diametrically opposite one another.

As the housing rotates 90 as a result of the rotation of the cam 88, atthe end of the 90 transfer stroke, bore 100 will be aligned with bore112 in the wear plate 35. Bore 112 will then permit the pressurized airbelow the piston to be vented to atmosphere via conduit 110. At the sametime, the space above the piston 54 will be in communication withpressurized air conduit 116 by way of bore 114 in the wear plate 35 andpassages in the housing including passage 106. Hence, at the end of thetransfer stroke of the housing, the piston 54 will be caused to movedownwardly to the position shown in FIG. 2. As piston 54 movesdownwardly, the pusher plate 76 is retracted from a horizontal phantomposition as shown in FIG. 3 to the solid line position shown in FigureIn order that the housing section 38 will automatically reset to itsproper position with the pusher plate over the dead plate, a limit'stop118 is provided as shown in FIG. 1. Limit stop 118 is supported by thebracket 1 18 at an elevation corresponding to the elevation of thecylinder head 56. The end of limit stop 118 adjacent the head 56 isprovided with an adjustable screw 120.

When more than one bottle or container is to be transferred from thedead plate onto the conveyor during oscillation of the housing, a pusherplate may be constructed so as to have a plurality of pockets as shownin FIG. 6. In FIG. 6, three containers may be simultaneously transferredby the L-shaped plates 122, 124, and 126. Each of these plates isadjustably connected to a mounting bracket 128 which, like bracket 78,is Z-shaped in section.

The Z-shaped bracket 128 has a top leg 129 provided with a series ofholes 130 to be used for lefthand operation and a series of holes 132 tobe used for righthand operation. Each of these holes is adapted tofacilitate mounting the bracket 128 on the transverse portion of theactuator 70. Each of the plates 122, 124, and 126 is adjustablysupported by bracket 128 in the same manner. Hence, only the mountingfor plate 126 will be described in detail. v

Plate 126 has a flat portion or flange 135 provided with a pair ofspaced parallel slots 134, 136. A lower leg 133 of bracket 128 has aslot 138 which is perpendicular to the slots 134, 136. Bolts 140, 142join the flange 135 to the lower leg 133 with each bolt extendingthrough the zone where the slots 134, 136 and 138 overlap. In thismanner, the plate pocket may be moved toward and away from bracket 128as well as along the longitudinal axis of bracket? 128 to accommodatedifferent size containers as well as any misalignment associated with aparticular take-out mechanism on the LS. machine.

The operation of the apparatus is as follows.

- Each individual'section of the LS. machine includes take-out tongs orother equivalent devices which deliver one or more newly formedglasscontainers onto the dead plates. It is desirable to permit thecontainers to remain on the dead plates for a short period of time wherethey will be exposed to cooling air from the dead plates. Theperforations in the top surface of the dead plates and the supply ofcooling air thereto is conventional.

As soon as the housing completes its return stroke, the head 56 willengage the screw 120 on the limit stop 1 18. At this point, passage 102is aligned with bore 180 and pressurized air is introduced below thepiston 54 to cause the pusher plate 76 to be projected or extended tothe position shown in FIG. 1. The cam follower 91 then oscillates thearm 92 to rotate the housing sections 38 and 39 through an arc of 90 sothat the glass container is transferred onto the middle portion of theconveyor 14 as shown at the righthand end of FIG. 1. During thistransfer stroke, the lower edge of pusher plate 76 lies at an elevationwherein it is approximately inch above a plane containing the dead plate12 and the conveyor 14.

At the completion of the transfer stroke, the housing is returned to itsinitial position by way of the oscillation of arm 92 effected by meansof the cam follower 91 and the cam track 90. At the end of the transferstroke, pressurized air is introduced into the chamber above the piston54 and the space below the piston 54 is vented to atmosphere. Hence, asthe housing begins its return stroke, the pusher plate 76.is retractedand elevated from the phantom position shown in FIG. 3 to the solid lineposition shown in FIG. 3. As the housing completes its return stroke,the pusher plate 76 is automatically extended again due to realignmentof bore 101) and passage 102. Due to the dwell period on the cam, thereis a slight delay before the next transfer stroke is commenced.

If there is a jam or some other obstruction which prevents the smoothand uninhibited transfer of glass containers, housing section 38 willimmediately stop while housing section 39 continues to rotate. As thisoccurs, the ball 46 is cammed upwardly so. as to break the link betweenthe housing sections. Housing section 38 will automatically reset on thenext return stroke of section 39. i

The return of the housing section 38 to its initial starting positionwherein it contacts the adjustable screw or bolt on the limit stop 118,is effected by the friction between the mating surfaces between thehousing sections amplified by the spring bias 48 on the ball 46 as wellas the spring 34 which tends to maintain the housing sections inintimate contact. As soon as the housing sections 38 and 39 are properlyaligned at the initial starting point for a transfer stroke, the ball 46will again seat in the bore 47. If the obstruction or jam is stillsubsisting, the sequence will repeat itself until both housing sectionsmay move through a complete transfer stroke.

If it is desired to repair or replace the pusher, it is only necessaryto remove the bolts extending between bracket 18 and the beam 20 as wellas the bolts between the pillow block 86 and the bracket 18. Thereafter,the entire 90 pusher may be raised vertically and replaced or repaired.

Alternatively, if it is desired to merely replace the housing and thepusher plate, it is only necessary to remove the bolts interconnectingthe top plate 30 and the bracket 18 as well as the bolt 32. Thereafter,the housing sections may be rotated 90 fro the position shown in FIG. 2and raised vertically. A replacement housing may be substituted and theapparatus back in operation within a few minutes.

If it is desired to convert a 90 pusher from righthand operation tolefthand operation, this may be accomplished in about twenty minutes asfollows. The bolts interconnecting the cylinder head 56 to the cylinder52 are removed, the head rotated and the bolts are then replaced. Pin 98is removed. Bracket 93'is removed and reattached to the opposite side ofthe bracket 18. The top plate 30 is removed, the housing is removedand-then replaced after housing section 39 has been flipped-over to theopposite si .e. Limit stop 118 is removed and attached to the oppositeside of the apparatus. The cam 88 will have been shifted to a positionwherein it may receive the cam follower 91. This completes theconversion.

Since the center post 28 is substantially equidistant from the adjacentdead plates and the conveyor 14, the 90 pusher will have been convertedto lefthand operation. More importantly, the 90 pusher is capable ofbeing installed initially for lefthand or righthand operation dependingupon the set-up of the [5. machine without requiring any additionalparts and with minimum labor. Thus, a single 90 pusher can bemanufactured with the versatility of being installed for either lefthandor righthand operation.

Since the friction brake on the cam shaft 84 has been eliminated, thereis less vibration and less horsepower is needed. The drag brake wasneeded to resist the intermediate torques effected by springs and chainsprocket drives on prior art devices. Thus, the 90 pusher of the presentinvention is more compact, and more reliable than those proposedheretofore.

The present invention may be embodied in other specific forms withoutdeparting from the spirit or essential attributes thereof, andaccordingly, reference should be made to the appended claims, ratherthan to the foregoing specification as indicating the scope of theinvention.

1 claim:

1. Glass container handling apparatus comprising a 90 pusher fortransferring newly formed glassware from a dead plate onto a conveyor,said 90 pusher including a mounting bracket having a lower flange, avertical post supported by the flange, a top plate connected to thebracket generally parallel to said flange, said top plate being coupledto the upper end of the post, a housing surrounding said post androtatably supported by said flange, a motor and a pusher plate supportedby said housing for rotation therewith, said pusher plate being abovesaid motor and connected thereto by linkage means, actuator meansincluding a cam shaft having a double face cam track for causing saidhousing to oscillate through an arc of about 90, said actuator meansincluding a cam follower in said track and an arm pivoted at one end tosaid bracket and pivoted at its other end to said housing, said camfollower being supported by said arm intermediate its ends, meansassociated with said motor for causing said motor to extend said pusherplate so that it will push glassware from a position on a dead plateonto a conveyor as said housing rotates and for retracting the pusherplate after each transfer stroke, said housing including first andsecond sections, said motor being supported by said first section, saidactuator means being connected to said second section, and meansreleasably coupling said sections together for rotation as a unit andfor interrupting the coupling of said sections if a jam occurs.

2. Apparatus in accordance with claim 1 including a limit stop on saidbracket for engaging a portion of said first housing section to properlyposition the first housing section for the commencement of a newtransfer stroke, and means biasing said first housing section downwardlyinto frictional contact with said second housing section.

3. Apparatus in accordance with claim 1 including a spring-biased memberon said first section, means defining a recess on said second sectionfor receiving said spring-biased member to effect the coupling betweensaid sections in a manner so that said member may be cammed upwardly inthe event of a jam to permit the second section to rotate independentlyof the first section.

4. Apparatus in accordance with claim 1 wherein said linkage meansinterconnecting said motor and said pusher plate includes a bracket, aplurality of said pusher plates each defining a pocket for engagingnewly formed glassware to be transferred to the conveyor, and means forconnecting each pusher plate to the last-mentioned bracket foradjustment in a direction along the last-mentioned bracket as well astoward and away from the last-mentioned bracket.

5. Apparatus in accordance with claim 1 wherein said post is betweensaid motor and the portion of said bracket adapted to be mounted on aconveyor support frame.

6. Glass container handling apparatus comprising a pusher fortransferring newly formed glassware through an arc of 90 from a deadplate onto a conveyor, said 90 pusher including a mounting brackethaving a lower flange, a vertical post supported by the flange, a topplate connected to the bracket generally parallel to said flange, saidtop plate being coupled to the upper end of the post, a housingsurrounding said post and rotatably supported by said flange, afluidactuated motor and a pusher plate supported by said housing formovement therewith, said pusher plate being above said motor andconnected thereto by linkage means, actuator means coupled to saidhousing for causing said housing to cyclically oscillate through an arcof about 90, said actuator means including a cam follower and a cam aswell as an arm pivoted at one end to a stationary support, said armbeing pivoted at its other end to said housing, said cam follower beingsupported by said arm intermediate its ends, means associated with saidmotor for causing said motor to extend said pusher plate to a positionso that it will push glassware from a position on a dead plate onto aconveyor as said housing rotates and for retracting the pusher plateafter each transfer stroke, said last-mentioned means including a wearplate supported by said lower flange, said housing being mounted on topof said wear plate, said housing having spaced passages communicatingwith said motor for introducing motive fluid to said motor, said wearplate having bores aligned with said passages in said housing at theends of the oscillatory stroke of said housing, and conduit means forcommunicating one wear plate bore to a source of pressure and forventing an oppositely disposed bore in said wear plate.

7. Apparatus in accordance with claim 6 wherein said housing iancludesfirst and second sections, said motor being supported by said firstsection, said actuator means being connected to said second section, andmeans including a spring-biased member releasably coupled said sectionstogether for rotation as a unit and for interrupting the coupling ofsaid sections if a jam occurs.

8. Apparatus in accordance with claim 6 wherein said cam is providedwith a peripheral circumferentially disposed double-face track whichreceives said cam follower.

9. Glass container handling apparatus comprising a 90 pusher fortransferring newly formed glassware from a dead plate onto a conveyor,said 90 pusher including a mounting bracket having a lower flange, avertical post supported by the flange, a top plate connected to thebracket generally parallel to said flange, said top plate being coupledto the upper end of the post, a housing surrounding said post androtatably supported by said flange, a motor and a pusher plate supportedby said housing for rotation therewith, said pusher plate being abovesaid motor and connected thereto by linkage means, actuator meansincluding a cam shaft having a double face cam track for causing saidhousing to oscillate through an arc of about 90, said actuator meansincluding a cam follower in said track and an arm pivoted at one end tosaid bracket and pivoted at its other end to said housing, said camfollower being supported by said arm intermediate its ends, meansassociated with said motor for causing said motor to extend said pusherplate so that it will push glassware from a position on a dead plateonto a conveyor as said housing rotates and for retracting the pusherplate after each transfer stroke, a pair of dead plates alongside aconveyor, and said 90 pusher being mounted between said dead plates withthe distance from the axis of said post to said conveyor beingsubstantially equal to the distance from said axis to said dead plates.

10. Glass container handling apparatus comprising a 90 pusher fortransferring newly formed glassware from a dead plate onto a conveyor,said 90 pusher including a mounting bracket having a lower flange, avertical post supported by the flange, a top plate connected to thebracket generally parallel to said flange, said top plate being coupledto the upper end of the post, a housing surrounding said post androtatably supported by said flange, a motor and a pusher plate supportedby said housing for rotation therewith, said pusher plate being abovesaid motor and connected thereto by linkage means, actuator meansincluding a cam shaft having a double face cam track for causing saidhousing to oscillate through an arc of about said actuator meansincluding a cam follower in said track and an arm pivoted at one end tosaid bracket and pivoted at its other end to said housing, said camfollower being supported by said arm intermediate its ends, meansassociated with said motor for causing said motor to extend said pusherplate so that it will push glassware from a position on a dead plateonto a conveyor as said housing rotates and for retracting the pusherplate after each transfer stroke, said housing having spaced passagescommunicating with said motor for introducing motive fluid to saidmotor, said lastmentioned means including a stationary wear plateinterposed between said lower flange and said housing, and said wearplate having bores aligned with said passages in said housing at theends of the oscillatory stroke of said housing.

1. Glass container handling apparatus comprising a 90* pusher fortransferring newly formed glassware from a dead plate onto a conveyor,said 90* pusher including a mounting bracket having a lower flange, avertical post supported by the flange, a top plate connected to thebracket generally parallel to said flange, said top plate being coupledto the upper end of the post, a housing surrounding said post androtatably supported by said flange, a motor and a pusher plate supportedby said housing for rotation therewith, said pusher plate being abovesaid motor and connected thereto by linkage means, actuator meansincluding a cam shaft having a double face cam track for causing saidhousing to oscillate through an arc of about 90*, said actuator meansincluding a cam follower in said track and an arm pivoted at one end tosaid bracket and pivoted at its other end to said housing, said camfollower being supported by said arm intermediate its ends, meansassociated with said motor for causing said motor to extend said pusherplate so that it will push glassware from a position on a dead plateonto a conveyor as said housing rotates and for retracting the pusherplate after each transfer stroke, said housing including first andsecond sections, said motor being supported by said first section, saidactuator means being connected to said second section, and meansreleasably coupling said sections together for rotation As a unit andfor interrupting the coupling of said sections if a jam occurs. 2.Apparatus in accordance with claim 1 including a limit stop on saidbracket for engaging a portion of said first housing section to properlyposition the first housing section for the commencement of a newtransfer stroke, and means biasing said first housing section downwardlyinto frictional contact with said second housing section.
 3. Apparatusin accordance with claim 1 including a spring-biased member on saidfirst section, means defining a recess on said second section forreceiving said spring-biased member to effect the coupling between saidsections in a manner so that said member may be cammed upwardly in theevent of a jam to permit the second section to rotate independently ofthe first section.
 4. Apparatus in accordance with claim 1 wherein saidlinkage means interconnecting said motor and said pusher plate includesa bracket, a plurality of said pusher plates each defining a pocket forengaging newly formed glassware to be transferred to the conveyor, andmeans for connecting each pusher plate to the last-mentioned bracket foradjustment in a direction along the last-mentioned bracket as well astoward and away from the last-mentioned bracket.
 5. Apparatus inaccordance with claim 1 wherein said post is between said motor and theportion of said bracket adapted to be mounted on a conveyor supportframe.
 6. Glass container handling apparatus comprising a 90* pusher fortransferring newly formed glassware through an arc of 90* from a deadplate onto a conveyor, said 90* pusher including a mounting brackethaving a lower flange, a vertical post supported by the flange, a topplate connected to the bracket generally parallel to said flange, saidtop plate being coupled to the upper end of the post, a housingsurrounding said post and rotatably supported by said flange, afluid-actuated motor and a pusher plate supported by said housing formovement therewith, said pusher plate being above said motor andconnected thereto by linkage means, actuator means coupled to saidhousing for causing said housing to cyclically oscillate through an arcof about 90*, said actuator means including a cam follower and a cam aswell as an arm pivoted at one end to a stationary support, said armbeing pivoted at its other end to said housing, said cam follower beingsupported by said arm intermediate its ends, means associated with saidmotor for causing said motor to extend said pusher plate to a positionso that it will push glassware from a position on a dead plate onto aconveyor as said housing rotates and for retracting the pusher plateafter each transfer stroke, said last-mentioned means including a wearplate supported by said lower flange, said housing being mounted on topof said wear plate, said housing having spaced passages communicatingwith said motor for introducing motive fluid to said motor, said wearplate having bores aligned with said passages in said housing at theends of the oscillatory stroke of said housing, and conduit means forcommunicating one wear plate bore to a source of pressure and forventing an oppositely disposed bore in said wear plate.
 7. Apparatus inaccordance with claim 6 wherein said housing iancludes first and secondsections, said motor being supported by said first section, saidactuator means being connected to said second section, and meansincluding a spring-biased member releasably coupled said sectionstogether for rotation as a unit and for interrupting the coupling ofsaid sections if a jam occurs.
 8. Apparatus in accordance with claim 6wherein said cam is provided with a peripheral circumferentiallydisposed double-face track which receives said cam follower.
 9. Glasscontainer handling apparatus comprising a 90* pusher for transferringnewly formed glassware from a dead plate onto a conveyor, said 90*pusher including a mounting bracket having a Lower flange, a verticalpost supported by the flange, a top plate connected to the bracketgenerally parallel to said flange, said top plate being coupled to theupper end of the post, a housing surrounding said post and rotatablysupported by said flange, a motor and a pusher plate supported by saidhousing for rotation therewith, said pusher plate being above said motorand connected thereto by linkage means, actuator means including a camshaft having a double face cam track for causing said housing tooscillate through an arc of about 90*, said actuator means including acam follower in said track and an arm pivoted at one end to said bracketand pivoted at its other end to said housing, said cam follower beingsupported by said arm intermediate its ends, means associated with saidmotor for causing said motor to extend said pusher plate so that it willpush glassware from a position on a dead plate onto a conveyor as saidhousing rotates and for retracting the pusher plate after each transferstroke, a pair of dead plates alongside a conveyor, and said 90* pusherbeing mounted between said dead plates with the distance from the axisof said post to said conveyor being substantially equal to the distancefrom said axis to said dead plates.
 10. Glass container handlingapparatus comprising a 90* pusher for transferring newly formedglassware from a dead plate onto a conveyor, said 90* pusher including amounting bracket having a lower flange, a vertical post supported by theflange, a top plate connected to the bracket generally parallel to saidflange, said top plate being coupled to the upper end of the post, ahousing surrounding said post and rotatably supported by said flange, amotor and a pusher plate supported by said housing for rotationtherewith, said pusher plate being above said motor and connectedthereto by linkage means, actuator means including a cam shaft having adouble face cam track for causing said housing to oscillate through anarc of about 90*, said actuator means including a cam follower in saidtrack and an arm pivoted at one end to said bracket and pivoted at itsother end to said housing, said cam follower being supported by said armintermediate its ends, means associated with said motor for causing saidmotor to extend said pusher plate so that it will push glassware from aposition on a dead plate onto a conveyor as said housing rotates and forretracting the pusher plate after each transfer stroke, said housinghaving spaced passages communicating with said motor for introducingmotive fluid to said motor, said last-mentioned means including astationary wear plate interposed between said lower flange and saidhousing, and said wear plate having bores aligned with said passages insaid housing at the ends of the oscillatory stroke of said housing.